Knowledge base for software setup, errors, and daily tool work.

Edge Browser Not Opening on Windows 11: Practical Fixes

You click the Edge icon, nothing happens. Or it flashes briefly and disappears. This is a common ...

Fix Microsoft Store 'File Locked' Error When Installing or Updating Apps

When you try to install, update, or launch an app from the Microsoft Store, you might see an erro...

How to Fix Windows Update Service Unavailable Error

If you see 'Windows Update service unavailable' when trying to check for updates, the Windows Upd...

Fix Outlook Connection Timeout When Sending Emails

You try to send an email in Outlook, but after a long pause you see an error like “Connection to ...

How to Fix 'Outlook Command Not Found' Registry Error

When you see 'Outlook command not found' or 'The command line argument is not valid' on startup, ...

Fix Windows Security Authentication Error 0x80070035